Successfully reported this slideshow.
We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. You can change your ad preferences anytime.

circles

3,862 views

Published on

Published in: Education
  • Be the first to comment

circles

  1. 1. 1<br />MORE ABOUT CIRCLES<br />FEATURING TOPICS: <br /><ul><li>CIRCLE
  2. 2. AREA OF CIRCLE
  3. 3. DIAMETER OF CIRCLE
  4. 4. RADIUS OF A CIRICLE
  5. 5. CIRCUMFERENCE OF A CIRCLE
  6. 6. CHORD OF CIRICLE
  7. 7. TANGENT OF A CIRICLE
  8. 8. SEGMENT OF A CIRLCE
  9. 9. SECANT OF A CIRCLE</li></li></ul><li>2<br />CIRCLE<br />A circle is a simple shape consisting of those points in a plane which are at the same distance from a given point called the centre.<br />
  10. 10. 3<br /><ul><li>RADIUS</li></ul>The common distance of the points of a circle from its center is called radius.<br />
  11. 11. 4<br /><ul><li>DIAMETER</li></ul>The diameter is a line segment that connects two points on the circle and goes through the center of the circle.  It is always twice as long as the radius.<br />
  12. 12. 5<br /><ul><li>CHORD</li></ul>A chord is any line segment whose endpoints are at any two points on the circle and it doesn’t pass through the centre.<br />
  13. 13. 6<br />TANGENT<br />The Tangent is a line which touches the circumference at only one point. A tangent is always perpendicular to the radius.<br />
  14. 14. 7<br /><ul><li>SECANT</li></ul>A secant is an extended chord: a straight line cutting the circle at two points.<br />
  15. 15. 8<br /><ul><li>SEGMENT</li></ul>A segment is a region bounded by a chord and an arc lying between the chord's endpoints<br />
  16. 16. 9<br />CIRCUMFERENCE OF A CIRCLE<br />CircumferenceThe circumference of a circle is merely the boundary of the circle or rather its perimeter. It’s defined as: C = 2 ×  π × r <br /> where: C = Circumference, r = radius, and  π = 3.1415 ....<br />
  17. 17. 10<br />SECTOR OF A CIRCLE<br />A circular sector or circle sector, is the portion of a circle enclosed by two radii and an arc, where the smaller area is known as the minor sector and the larger being the major sector. Its formula is: Converting the central angle into degrees gives:<br /> x/360.TT r2<br />
  18. 18. 11<br />AREA OF A CIRCLE<br />The area of a circle (the region occupied by a circle) is π r2 when the circle has radius r. Here the symbol π (Greek letter pi) denotes the constant ratio of the circumference of a circle to its diameter. <br />
  19. 19. 12<br />SOME FORMULAS RELATED TO CIRCLE<br /><ul><li>Diameter = 2 x radius of circle
  20. 20. Circumference of Circle =  2 π  x radius    where  π =  = 3.141592...
  21. 21. Area of Circle: area = π r2
  22. 22. Length of a Circular Arc: (with central angle )    if the angle  is in degrees, then length =  x (π/180) x r
  23. 23. Area of Circle Sector: (with central angle )    if the angle  is in degrees, then area = (/360) π r2</li></li></ul><li>13<br />THANK YOU FOR LEAFING THROUGH OUR PRESENTATION<br />
  24. 24. 14<br />CREDITS<br />ANANT AGARWAL X-B<br />PRANJAL SHARMA X-B<br />RAJ KISHORE SINGH X-B<br />ASHISH SINGH X-B<br />

×